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	/*
	* Copyright (c) 1996, 2016, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package java.sql;

	import java.time.Instant;
	import java.time.LocalDate;

	/**
	* <P>A thin wrapper around a millisecond value that allows
	* JDBC to identify this as an SQL <code>DATE</code> value. A
	* milliseconds value represents the number of milliseconds that
	* have passed since January 1, 1970 00:00:00.000 GMT.
	* <p>
	* To conform with the definition of SQL <code>DATE</code>, the
	* millisecond values wrapped by a <code>java.sql.Date</code> instance
	* must be 'normalized' by setting the
	* hours, minutes, seconds, and milliseconds to zero in the particular
	* time zone with which the instance is associated.
	*
	* @since 1.1
	*/
	public class Date extends java.util.Date {

	/**
	* Constructs a <code>Date</code> object initialized with the given
	* year, month, and day.
	* <P>
	* The result is undefined if a given argument is out of bounds.
	*
	* @param year the year minus 1900; must be 0 to 8099. (Note that
	* 8099 is 9999 minus 1900.)
	* @param month 0 to 11
	* @param day 1 to 31
	* @deprecated instead use the constructor <code>Date(long date)</code>
	*/
	@Deprecated(since="1.2")
	public Date(int year, int month, int day) {
	super(year, month, day);
	}

	/**
	* Constructs a <code>Date</code> object using the given milliseconds
	* time value. If the given milliseconds value contains time
	* information, the driver will set the time components to the
	* time in the default time zone (the time zone of the Java virtual
	* machine running the application) that corresponds to zero GMT.
	*
	* @param date milliseconds since January 1, 1970, 00:00:00 GMT not
	* to exceed the milliseconds representation for the year 8099.
	* A negative number indicates the number of milliseconds
	* before January 1, 1970, 00:00:00 GMT.
	*/
	public Date(long date) {
	// If the millisecond date value contains time info, mask it out.
	super(date);

	}

	/**
	* Sets an existing <code>Date</code> object
	* using the given milliseconds time value.
	* If the given milliseconds value contains time information,
	* the driver will set the time components to the
	* time in the default time zone (the time zone of the Java virtual
	* machine running the application) that corresponds to zero GMT.
	*
	* @param date milliseconds since January 1, 1970, 00:00:00 GMT not
	* to exceed the milliseconds representation for the year 8099.
	* A negative number indicates the number of milliseconds
	* before January 1, 1970, 00:00:00 GMT.
	*/
	public void setTime(long date) {
	// If the millisecond date value contains time info, mask it out.
	super.setTime(date);
	}

	/**
	* Converts a string in JDBC date escape format to
	* a <code>Date</code> value.
	*
	* @param s a <code>String</code> object representing a date in
	* in the format "yyyy-[m]m-[d]d". The leading zero for <code>mm</code>
	* and <code>dd</code> may also be omitted.
	* @return a <code>java.sql.Date</code> object representing the
	* given date
	* @throws IllegalArgumentException if the date given is not in the
	* JDBC date escape format (yyyy-[m]m-[d]d)
	*/
	public static Date valueOf(String s) {
	if (s == null) {
	throw new java.lang.IllegalArgumentException();
	}
	final int YEAR_LENGTH = 4;
	final int MONTH_LENGTH = 2;
	final int DAY_LENGTH = 2;
	final int MAX_MONTH = 12;
	final int MAX_DAY = 31;
	Date d = null;

	int firstDash = s.indexOf('-');
	int secondDash = s.indexOf('-', firstDash + 1);
	int len = s.length();

	if ((firstDash > 0) && (secondDash > 0) && (secondDash < len - 1)) {
	if (firstDash == YEAR_LENGTH &&
	(secondDash - firstDash > 1 && secondDash - firstDash <= MONTH_LENGTH + 1) &&
	(len - secondDash > 1 && len - secondDash <= DAY_LENGTH + 1)) {
	int year = Integer.parseInt(s, 0, firstDash, 10);
	int month = Integer.parseInt(s, firstDash + 1, secondDash, 10);
	int day = Integer.parseInt(s, secondDash + 1, len, 10);

	if ((month >= 1 && month <= MAX_MONTH) && (day >= 1 && day <= MAX_DAY)) {
	d = new Date(year - 1900, month - 1, day);
	}
	}
	}
	if (d == null) {
	throw new java.lang.IllegalArgumentException();
	}

	return d;

	}


	/**
	* Formats a date in the date escape format yyyy-mm-dd.
	*
	* @return a String in yyyy-mm-dd format
	*/
	@SuppressWarnings("deprecation")
	public String toString () {
	int year = super.getYear() + 1900;
	int month = super.getMonth() + 1;
	int day = super.getDate();

	char buf[] = new char[10];
	formatDecimalInt(year, buf, 0, 4);
	buf[4] = '-';
	Date.formatDecimalInt(month, buf, 5, 2);
	buf[7] = '-';
	Date.formatDecimalInt(day, buf, 8, 2);

	return new String(buf);
	}

	/**
	* Formats an unsigned integer into a char array in decimal output format.
	* Numbers will be zero-padded or truncated if the string representation
	* of the integer is smaller than or exceeds len, respectively.
	*
	* Should consider moving this to Integer and expose it through
	* JavaLangAccess similar to Integer::formatUnsignedInt
	* @param val Value to convert
	* @param buf Array containing converted value
	* @param offset Starting pos in buf
	* @param len length of output value
	*/
	static void formatDecimalInt(int val, char[] buf, int offset, int len) {
	int charPos = offset + len;
	do {
	buf[--charPos] = (char)('0' + (val % 10));
	val /= 10;
	} while (charPos > offset);
	}

	// Override all the time operations inherited from java.util.Date;

	/**
	* This method is deprecated and should not be used because SQL Date
	* values do not have a time component.
	*
	* @deprecated
	* @exception java.lang.IllegalArgumentException if this method is invoked
	* @see #setHours
	*/
	@Deprecated(since="1.2")
	public int getHours() {
	throw new java.lang.IllegalArgumentException();
	}

	/**
	* This method is deprecated and should not be used because SQL Date
	* values do not have a time component.
	*
	* @deprecated
	* @exception java.lang.IllegalArgumentException if this method is invoked
	* @see #setMinutes
	*/
	@Deprecated(since="1.2")
	public int getMinutes() {
	throw new java.lang.IllegalArgumentException();
	}

	/**
	* This method is deprecated and should not be used because SQL Date
	* values do not have a time component.
	*
	* @deprecated
	* @exception java.lang.IllegalArgumentException if this method is invoked
	* @see #setSeconds
	*/
	@Deprecated(since="1.2")
	public int getSeconds() {
	throw new java.lang.IllegalArgumentException();
	}

	/**
	* This method is deprecated and should not be used because SQL Date
	* values do not have a time component.
	*
	* @deprecated
	* @exception java.lang.IllegalArgumentException if this method is invoked
	* @see #getHours
	*/
	@Deprecated(since="1.2")
	public void setHours(int i) {
	throw new java.lang.IllegalArgumentException();
	}

	/**
	* This method is deprecated and should not be used because SQL Date
	* values do not have a time component.
	*
	* @deprecated
	* @exception java.lang.IllegalArgumentException if this method is invoked
	* @see #getMinutes
	*/
	@Deprecated(since="1.2")
	public void setMinutes(int i) {
	throw new java.lang.IllegalArgumentException();
	}

	/**
	* This method is deprecated and should not be used because SQL Date
	* values do not have a time component.
	*
	* @deprecated
	* @exception java.lang.IllegalArgumentException if this method is invoked
	* @see #getSeconds
	*/
	@Deprecated(since="1.2")
	public void setSeconds(int i) {
	throw new java.lang.IllegalArgumentException();
	}

	/**
	* Private serial version unique ID to ensure serialization
	* compatibility.
	*/
	static final long serialVersionUID = 1511598038487230103L;

	/**
	* Obtains an instance of {@code Date} from a {@link LocalDate} object
	* with the same year, month and day of month value as the given
	* {@code LocalDate}.
	* <p>
	* The provided {@code LocalDate} is interpreted as the local date
	* in the local time zone.
	*
	* @param date a {@code LocalDate} to convert
	* @return a {@code Date} object
	* @exception NullPointerException if {@code date} is null
	* @since 1.8
	*/
	@SuppressWarnings("deprecation")
	public static Date valueOf(LocalDate date) {
	return new Date(date.getYear() - 1900, date.getMonthValue() -1,
	date.getDayOfMonth());
	}

	/**
	* Creates a {@code LocalDate} instance using the year, month and day
	* from this {@code Date} object.
	* @return a {@code LocalDate} object representing the same date value
	*
	* @since 1.8
	*/
	@SuppressWarnings("deprecation")
	public LocalDate toLocalDate() {
	return LocalDate.of(getYear() + 1900, getMonth() + 1, getDate());
	}

	/**
	* This method always throws an UnsupportedOperationException and should
	* not be used because SQL {@code Date} values do not have a time
	* component.
	*
	* @exception java.lang.UnsupportedOperationException if this method is invoked
	*/
	@Override
	public Instant toInstant() {
	throw new java.lang.UnsupportedOperationException();
	}
	}

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